Malware
Resident
According to Cisco Talos, Resident is a backdoor likely developed by the same author as win.warmcookie, and it was observed being delivered in intrusions they attribute to TA866.
Resident is a Windows malware family operated by TA866.
Background
Cisco Talos reports that Resident is a backdoor that probably shares an author with win.warmcookie, and they saw it deployed during intrusions they ascribe to TA866.
Source: Malpedia (Fraunhofer FKIE).